Wood disk wheel



E. C. SENDELBACH- WOOD DISK WHEEL.

APPLICATION FILED FEB. 15. I922.

1,437,948, Patented Dec. 5, 1922.

3 SHEETSSHET I.

- WITNESS E. C. SENDELBACH WOOD DISK WHEEL.

APPLICATION FILED FEB-15.1922.

Patented Dec. 5, 1922.

3 SHEETS-SHEET 2.

Wm ATTORNEYS WITNESS E. c. SENDELBACH.

WOOD DISK WHEEL.

APPLICATION FILED FEB. I5, 1922.

1,437,948. Patented Dec. 5, 1922.

3 SHEETS SHEET 3.

ENTOR 14 C WITNESS j z A TTORNE YS Patented Dec. 5, 1922.

nnwanno. sinaneLB GH, rfmme mmm;sammvimr f f Application med ljebruary'15, 1922, "seria at. 536372.

To all whom itmay cancer rt:

Be it knownthatI EDWARD .C. SENDEL- EACH, a citizen of the"UnitedStates', resid ing at Philadelphia, in the county of Phil--commodable to wheel bands of different sizes and easily manufactured. iI I 1 More specifically stated certain ,ob-jects'of the invention. maybe said to reside in the provision of what I have termeda double diskwheel, that is a wheel which ismade up.

of two disks or sections as will furtherap-l pear; the provision of awheel which pro sents a flat face. to the brake dru'm'as'well as aflatface to the hub plate butone which is concaved or dished on thexside which is turned away from the" vehicle; the provisionof a wheel inwhich the strength of laminated wood is secured but in which none of theglued joints of such laminations are exposed to the weather norm/whichare. any dirt or water collecting pockets; the provision of a wheel inwhich the load-is carried perpendicularly through the; center of the huband of the wheel band or substantially so; and the provision of-awh'eelin which the dished front or outer face" of the wheel is used to bracethe structure against side stress. I also contemplatefithe. provision ofa wood disk wheel to which can i be readily appliedtheusual standardwheel band as well as any desired: type of} hub flange- A further objectofithe invention is the-provision of a wood disk-wheelfjin which readyaccess can behad to the valve stem for purposes oftireinflation-prideflation. I

I also propose tobuild this double disk,

wheel in such a manner as-flto utilize the screws or other members whichhold the two disks together as asortof stop, against which thexrimclamp; plates-and washers associated with the boltsforholding the rim inplace can take;

It is, also. my ntention to provide disk; wheel havinglaflatlifaceagainstrwhich 2 but illustrating;

\ braked drum I secured and i i outer dished face which canbe entirelymade of; .lamlnated woodwhile at the same time being capable ofaccommodating itself a'szwbefore stated to differentirsizesz df wheelabands;

I Theseftogetherrwi'th: such other objects as may appearhereinafterorare incident to my invention I obtain'bly' ineanso'f a con structionwhich is illustrated inxpreferred form inthe accompanying drawings,where I .2 A I W Fig, is-1 a face" wviewxof'; an automobile wheelembodying my. invention "but I with a portion of the rini and some ofthe rim 1 clamps omitted;- FigtifZ is" a section on ,the line 2 2OfwF'lg.-1; Fl-g. sectiononthe line 3- -3-o f.Fig. 1 but on anenlargedscale; Fig'a is a section -o'n the line 1- offi Fig.1 1,;also {onanenlargedscale; Fig.

5 isa fragmentary elevation: similar to that of Fig; 1 illustratingamodification; Rig." 6 is 5a section 5 on the line 6o 6c of; Fig; 5

and Fig.- Zis: asect-ioni similar to; that of Fig.

somewhat different form l.-

of'construction. Referring to, the draw ngsfl ,illjbe noted thatamyiimproved; woodmlisk wheel come prises a substantially fiat FbaekInenrberor section 'T'anda dished' front' member or seca;

tionr8s which are securedtogether in, any

desired or suitable manner but preferably by screws '9: as illustrated.,Thescrews 9 are located near the; periphery of the (wheel and inaddition :to these, I employ screws 10 nearer the -center ofthe;.iwheehlunderathe hub fiangellr 1);; j, H Because. of-z'its verymuehigreater strength I make the-haclcmember or section 0t lam- Iinated-wood which, in the drawings I have illustrated as being composedof'seven lay: erse. 'The number of layers, however; can

be v lli edas desiredandlgw-ish tocall at tention to the factthatcbythis means I can make my; :wh eel readily .iaccommodable" to ticethere-are generally three} standard ,sizes of wheel. bands, g name ly,2". In order to make my wheelsufliciently. wide v"wheel bands ofdifierent sizeswln pracatthe periphery to take theflargersized bands,I'simply ad'di to the mllfibe of ay ers of laminations ,to the backmember leavmat s Mane Iif h O r he e parts composing thebalancesubstantially have been familiar, in order to dish the wheel thelaminations' are built up to a cer tain thickness and then the entiremass or body of wood is pressed to the desired shape.

This process necessarily limited the thickness to which the wheel couldbe built.- It will readily be seen, therefore, that with my improvedmethod it will be possible to build up a wheel to any desired thicknesssimply by adding laminations tothe back member asdescribed. 1 a

In Figs. 1 to 6 inclusive I have illustrated the front member or sectionalso as composed of laminated wood which laminations are pressedapproximately to .the shape 'illus-' trated andformed with a centralflat portion 12 which abutsi-against the inner flat face of the backmember and a peripheral flat portion 13 againstwhich the rim clampplates 14 are adapted tobe screwed;

Between the flat periphery 13 of the front member and the Hat'peripheryof the back member, 'I provide a separator 15 and it will be observedthat the securingor connecting screws 9 pass through this member. f

In order to brace-the wheel against side stresses, I apply to the outerface of the flat portion 12 what I have termed a pad extensionmember16which I prefer to make of such a thickness as will make thewheel in the center substantially as thick as it is at the periphery.That is to saythe sum of thefthicknesses of the back member 7 the frontmember 8 and'the pad extension member 16 is substantially equal to thesum of the thicknesses of the back member 7 the separator member 15 andthe flatportion 13 of the front membe'r8.

Between the pad extension member 16 and the central portionl2 of theouter member 8, I prefer to employ some torque resisting connection"such for example as the radially disposedstrips of wood 17 whichconstitute in effect what might be termed keys inasmuch asthey fit intosuitablechannels or groovesin the members which they join. In Figures 5"and 6 I have illustrated a substitute .method for resisting torque inwhich the two members in question are secured together by a, pluralityof circumferentially disposed dowel pins 18.

In a structure such as is illustrated in Figures llto 6 inclusive Iprefer to insert sufficient dimension to a block19 between the front andbackmembers at the. point where the valve stem of the tire indicated inFigure'2 by the dotted line 20,.is inserted. .This block is drilled outso as to have an, oval opening 21 of V M I permitof'the use of a; encilpressuregage; "j

.he' manner in which the wheelis built up is briefly as follows: Firstthe desired number of laminations constituting the back member are builtup after which the separator member 15 is put in place followed by theblock 19 and then by the front memher, 8. Against the central portion ofthe front member comes the pad extension inember,'. all the parts beingsuitably glued step by step. The securing screws 9 and 10 are then putin place and a hole drilled through all of the members at the pointwhere the valve stem is inserted which hole constitutes in effect acontinuationof the hole 21- already referred'to in the block. 19.- Therear of the hole is covered over in any desired manner by means of aplate 22 and the front by means of another plate 23'provided withsuitable spring clips "24 in'order that it may be readily removed andreplaced when changing. a tire; The spring clips may snap over eitherthe edge of the wood as shown at the upper portion of Figure 2 orovera-wire 25 embedded in thewood as shown at the lower portion of the holein Figure 2.

Referring to that the parts substantially:correspond with the exceptionthat the front member 8 is not made of laminated wood but is simplybuilt vup of a straight piece or a series of straight pieces as may benecessary in forming the wheel. It is also provided with an outerperipheral flat part 13 against which the plates 1 1 are adapted toabut. This type of wheel is built up in much the same manner as thefirst type described except; of course, as just stated the outer member8 is not laminated and instead of pressing it into the dish shape, Iprefer to core it out on a lathe.

The wheel band 26 is shrunk on in the usual manner. 1

It will be noted that the construction pro vides a smooth flat faceagainst which the. hub flange plate 11 is adapted'to abut as well as asmooth interior flat face against which the brake drum 27 is adapted toabut; This is of great advantage particularly with respect to the brakedrum inasmuch as in former disk wheels of this character with which I amfamiliar it has been necessary In Figure 31' have illustrated inaddition to my improvements the usual type of rim 29 rim Wedge 30, rimclamp and nut and bolt securing means 32 and I also wish to point outthat thescrews 9 and the rim plates 14: as well as the washers if 3i'under theheads of the bolts 33 are so positioned with respect to oneanotheras tobring the rim plates over the'heads of the screws and theWashers over the ends that I have provided a wood disk wheel for anautomobile in which I have secured an the advantages incident tolaminations while at the same time providing a dished front or outerface. The wheel hasa flat back or inner surface against which the brakedrum abuts, there are no dirt crevices and the load is carriedperpendicularly through the center of the hub and the wheel band. Noglued joints are exposed to the weather and the wheel. is resilient,light, strong and easy to wash. It is easy to manufacture and presents apleasing appearance both of which features are of great importance inconnection with manufacture and sale.

What I claim is: I

1. A wood disk wheel comprising in combination, an inner section havingsubstantially fiat faces and an outer section inwardly dished to providea substantially flat central portion abutting against the adjacentflatface of the inner section.

2. A wood disk wheel comprising in combination, a laminated innersection having a substantially flat inner face and an outer sectioninwardly dished and having a fiat inner face adapted to abut against theflat face of the inner section.

3. A wood disk wheel comprising in combination, a laminated innersection having a substantially fiat outer face, a laminated outersection having a concave outer face,

spacer means between the peripheries of the sections, and securing meansholding all of said parts together.

4:. A wood disk wheel comprising in com- 5. A wood disk wheel comprisingin combination, a laminated inner section having a substantially fiatinner face, a laminated outer section inwardly dished to provide a fiatfaced central portion adapted to abut against the flat face of the innersection, separator means between the peripheries of the sections, asubstantially flat peripheral portion on the outer section adapted toabut against the separator means, and fastening members extendingthrough said peripheral portions and said separator means.

6. In awood disk wheel for pneumatic tires ofthe character hereindescribed,the combination'of a hollowed block opposite the valvesteminto which the stem projects, openings in the disks opposite theblock, and

removable cap members closing said openin s.

1. A wood disk wheel comprising in combination, an inner straightsection, an outer inwardly dished section abutting at the centralportion thereof against the inner section, and a pad extension memberplaced against the lowest portion of the dished surface to brace theouter section.

8. A wood disk wheel comprising in combination, an inner straightsection, an outer inwardly dished section abutting at the centralportion thereof against the inner section, a pad extension member placedagainst the lowest portion of the dished surface, and a. key between thepad extension member and the outer section.

' 9. A wood disk wheel comprising in combination, a laminated innerstraight section, an outer inwardly dished laminated section abutting atthe central portion thereof against the inner straight section, a pad extension member placed against the lowest portion of the dished surface,and a key between the pad extension member and the outer section.

10. A wood disk wheel comprising in combination, a laminated innerstraight section, an outer inwardly dished laminated section abutting atthe central portion thereof against the inner straight section, a padextension member placed'against the lowest portion of the dishedsurface, and means locking the pad extension member and the outersection together as against strains imposed by torque.

11. In a disk wheel, the combination with ahub, of a substantially flatlaminated disk secured thereto, a curved laminated disk secured to theflat disk at the hub, and a ring separating said disks at theirperipheries.

12. A disk wheel comprising a substantially fiat laminated diskconstituting the inner face, and a curved laminated disk secured to thefiat disk at the inner portion and spaced apart therefrom at theperiphery and constituting the outer face of the wheel.

In testimony whereof, I have hereunto signed my name.

p EDWARD C. SEN DELBACH.

